An identifier is a name that identifies (that is, labels the identity of) either a unique class of objects or a unique instance of such objects; the class or instance may be an idea, person, physical countable object (or class thereof), or physical noncountable substance (or class thereof). The abbreviation "ID" may refer to identity, identification (the process of identifying), or an identifier (that is, an instance of identification).
An identifier is a name that identifies (that is, labels the identity of) either a unique class of objects or a unique instance of such objects; the class or instance may be an idea, person, physical countable object (or class thereof), or physical noncountable substance (or class thereof). The abbreviation "ID" may refer to identity, identification (the process of identifying), or an identifier (that is, an instance of identification).
Source: Wikipedia "Identifier" · CC BY-SA 4.0
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